The German writer Goethe once said, “With knowledge comes more doubt.”

That’s certainly the way Americans are reacting to the approach of ObamaCare. According to a CBS News survey, a clear majority of Americans — 54 percent — disapprove of the health-care law, against only 36 percent who approve. More Americans want the law repealed than want to keep it.

Turns out this is the highest opposition ever recorded by the CBS poll.

For the White House, it gets worse. Only 13 percent said ObamaCare will “help me,” while 38 percent are convinced they’ll personally be hurt. Maybe they’ve been reading about workers at a California call center set up to explain ObamaCare to the public: About half will be part-timers, with no health benefits at all.

It wasn’t supposed to work this way. The idea was Congress would pass the bill; we’d then learn what was in it — and react more favorably as ObamaCare kicked in. But barely two months before the Oct. 1 roll-out, it appears the more Americans learn, the more worried they become. With good reason.